In the global new energy battery industry, battery modules serve as the core assembly unit of power batteries and energy storage batteries, integrating multiple battery cells, circuits and structural components. The sealing, shock absorption, flame retardancy and temperature resistance of battery modules directly determine the safety, stability and service life of the entire battery system. Battery module silicone foam is a professional functional material specially developed for battery module assembly, tailored to the tight assembly, harsh operating environment and high-safety requirements of battery modules. Tengye supplies high-performance battery module silicone foam, fabricated with battery-grade silicone raw materials and precision closed-cell foaming technology, to provide all-round, reliable protection for battery modules and ensure their safe and stable operation in various scenarios.
Battery-Grade Silicone Material & Module-Optimized Foaming Process
Our battery module silicone foam adopts imported high-purity, battery-grade silicone raw materials, with a halogen-free, low-smoke, non-toxic and environment-friendly formula that is specially optimized for battery module working characteristics. We adopt advanced closed-cell foaming technology to form a uniform and dense porous internal structure, which perfectly balances soft flexibility, high resilience, tight fitting and long-lasting sealing performance, eliminating material defects that may cause abrasion, corrosion or damage to battery cells, circuit boards and module shells.
This professional battery-grade silicone foam features an ultra-wide operating temperature range from -60℃ to 230℃, maintaining stable physical properties even under long-term high-temperature operation of battery modules, extreme low-temperature storage and temperature cycle changes, without hardening, cracking, softening or deformation. It has excellent chemical resistance, effectively resisting corrosion from battery electrolyte, cleaning agents and acidic-alkaline substances, and also boasts outstanding aging resistance, adapting to long-term use in battery module static and dynamic operating environments. All products fully comply with RoHS 2.0, REACH, UL 94 V-0 and battery industry safety standards, with authoritative third-party test reports from SGS, Intertek and other institutions available for verification, fully meeting the strict quality requirements of the global new energy battery module industry.
Core Performance Advantages for Battery Modules
Targeted at the unique pain points of battery module assembly and operation, our battery module silicone foam breaks through the limitations of traditional foam and sealing materials, with fully optimized performance to meet the high-standard protection needs of battery modules, covering all-round functional advantages:
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Precision Sealing & Gap Filling: The soft and compliant texture and precise dimensional control enable tight fitting with battery module gaps, shell joints, wiring ports and flange edges, achieving IP67-IP68 waterproof and dustproof rating, effectively blocking moisture, dust and sediment from invading the module, avoiding circuit short circuits, cell corrosion and performance attenuation.
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Top-Tier Flame Retardancy: Meets UL 94 V-0 the highest flame retardant standard, self-extinguishing immediately after leaving the fire, with no molten dripping and no release of toxic and harmful gases, effectively blocking the spread of fire within the module, eliminating potential fire risks of battery modules and protecting adjacent modules from fire damage.
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Excellent Shock Absorption & Cushioning: The unique porous foamed structure efficiently absorbs vibration and impact generated during battery module transportation, installation and operation, reducing stress on internal battery cells and circuit components, preventing cell damage, loose connections and structural deformation, ensuring the integrity of the module.
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Superior Temperature Resistance: Specially optimized for battery module temperature changes, it maintains stable flexibility and resilience in high-temperature (module working heating) and low-temperature (outdoor storage) environments, without performance degradation, ensuring reliable protection in all climate and working conditions.
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Low Compression Set & Durable Resilience: Possesses exceptional rebound performance, with a compression set of ≤5% after long-term continuous compression, retaining tight fitting and sealing effect under sustained assembly pressure, avoiding sealing failure caused by permanent deformation during long-term module use.
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Module-Friendly & Non-Corrosive: The material is neutral and non-corrosive, with no chemical reaction with battery cells, module shells, metal connectors and circuit boards, ensuring no damage to module components during long-term contact use, and compatible with various battery module materials (aluminum alloy, plastic, steel).
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Easy Assembly & High Compatibility: Light in weight, soft in texture and good in fit, it can be easily installed in irregular module gaps, compatible with automated assembly lines and manual installation, effectively improving battery module assembly efficiency and accuracy.
Main Application Scenarios
Our battery module silicone foam is widely used in various battery module types with high safety, sealing and protection requirements, covering all core fields of the new energy battery industry:
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Square-Shell Battery Modules: Sealing, cushioning and flame-retardant protection for square-shell lithium battery modules, including gaps between cells, module shell joints and wiring harness ports, adapting to the tight assembly requirements of square-shell modules.
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Cylindrical Battery Modules: Gap filling, shock absorption and sealing for cylindrical battery modules, fitting the curved surface of cylindrical cells, preventing cell collision and moisture intrusion, ensuring module stability.
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Soft-Pack Battery Modules: Gentle cushioning and sealing for soft-pack battery modules, avoiding damage to soft-pack cell surfaces, while providing reliable waterproof and flame-retardant protection, adapting to the flexible structure of soft-pack modules.
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New Energy Vehicle Battery Modules: Sealing and protection for power battery modules of passenger cars, commercial vehicles and electric buses, adapting to the harsh vehicle-mounted vibration and temperature fluctuation environment.
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Energy Storage Battery Modules: Sealing and shock absorption for household, industrial & commercial and large-scale energy storage battery modules, adapting to indoor and outdoor energy storage scenarios.
Custom OEM/ODM Service
We provide comprehensive personalized customization solutions to match the diversified structures, sizes and performance needs of different battery module types, supporting personalized R&D testing, small-batch trial production and large-scale mass production:
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Specification & Shape Customization: Customize thickness (1mm-20mm), density, hardness, color and external dimensions according to customer needs; support die-cutting, molding and special-shaped processing based on 2D/3D drawings or physical samples of battery modules.
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Performance Optimization: Adjust material formulas to enhance flame retardancy, temperature resistance, waterproofing and resilience; optional self-adhesive backing, surface smoothing and anti-static processing to meet the assembly needs of battery modules.
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Rapid Prototyping: Deliver customized samples within 7-12 days for battery module fitment and performance testing, with timely adjustments according to customer feedback to meet actual module assembly requirements.
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Stable Mass Production: Support small-batch trial production for battery module R&D and large-scale continuous production for mass delivery, with complete quality traceability system to ensure consistent product quality and on-time supply, complying with battery industry production standards.
Precautions for Use
To ensure the full performance of battery module silicone foam, extend its service life and guarantee stable protection effect during long-term module operation, please strictly abide by the following guidelines during installation, use and storage:
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Before installation, thoroughly clean the bonding surface of battery module shells, cell surfaces and components to keep it dry, smooth, free of oil, dust, burrs and impurities, ensuring a tight and gap-free fit between the foam and the module surface.
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Control the compression ratio reasonably during installation, generally controlled at 30%-50%, avoid excessive compression to prevent permanent deformation of the foam, which will directly affect its sealing, shock absorption, flame retardancy and temperature resistance performance.
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Store the product in a cool, dry and ventilated environment before installation, avoid long-term exposure to strong sunlight, high-temperature heat sources and open flames, and keep away from flammable, explosive and corrosive chemicals (such as battery electrolyte) to prevent premature aging and performance degradation.
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Select the appropriate product specifications, thickness, hardness and performance grade according to the battery module type (square-shell/cylindrical/soft-pack), application scenario and battery industry safety standard requirements.
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During transportation, handling and installation, avoid sharp object scratches, heavy pressure and violent impact on the foam, so as not to damage the internal foaming structure and external shape, affecting its normal protection performance.
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During battery module maintenance, check the fitting condition of the foam regularly, especially for modules in harsh environments, and replace the aged, deformed or damaged foam in a timely manner to maintain the protection effect of the battery module.
Strict Quality Control System
Adhering to the principle of "quality first, safety supreme", we implement a full-process strict quality control system for battery module silicone foam, covering raw material procurement, production processing to finished product delivery, ensuring each batch of products meets the high standards of the battery module industry:
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Raw Material Inspection: 100% full inspection of battery-grade silicone raw materials, verifying flame retardancy, temperature resistance, environmental protection indicators and battery module compatibility before entering the production process.
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In-Process Monitoring: Real-time dynamic control of foaming, molding and cutting parameters to ensure uniform pore structure, accurate dimensional tolerance and no defects such as bubbles, burrs, cracks and flash, meeting battery module assembly accuracy requirements.
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Finished Product Testing: Conduct comprehensive performance tests including sealing, flame retardancy, shock absorption, temperature cycle and compression set, issuing complete test reports and certification documents for each batch, ensuring product consistency and reliability.
Tengye: Your Trusted Battery Module Sealing Partner
At Tengye, we focus on the R&D, production and customized services of high-performance battery module silicone foam, relying on professional foaming technology, strict quality control and intimate after-sales support, to provide safe, durable and reliable sealing and cushioning solutions for global battery module manufacturers and battery system suppliers. We are committed to improving the safety, stability and service life of battery modules, and becoming a long-term trusted core partner in the global new energy battery industry. Contact us today to get a free technical consultation, customized sample and exclusive quotation for mass production!
